curl --request GET \
  --url https://api.fastcac.com/v1/businesses/monitors \
  --header 'Authorization: Bearer <token>'

const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};

fetch('https://api.fastcac.com/v1/businesses/monitors', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://api.fastcac.com/v1/businesses/monitors"

headers = {"Authorization": "Bearer <token>"}

response = requests.get(url, headers=headers)

print(response.text)

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://api.fastcac.com/v1/businesses/monitors"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("Authorization", "Bearer <token>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.fastcac.com/v1/businesses/monitors",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

{
  "object": "list",
  "data": [
    {
      "object": "business_monitor",
      "id": "mon_5LSDXWt8F8CyUZQYR7RWyu",
      "number": "7654321",
      "type": "RC",
      "type_label": "Company",
      "name": "ADA FOODS LIMITED",
      "status": "INACTIVE",
      "active": false,
      "external_id": "merchant-4471",
      "state": "active",
      "paid_through": "2026-11-28T01:52:14Z",
      "last_checked_at": null,
      "last_changed_at": "2026-10-29T01:52:14Z",
      "amount_charged": null,
      "created_at": "2026-10-29T01:52:14Z"
    }
  ],
  "has_more": false
}

{
  "error": {
    "type": "invalid_request_error",
    "code": "<string>",
    "message": "<string>",
    "param": "<string>",
    "request_id": "<string>",
    "details": {}
  }
}

{
  "error": {
    "type": "authentication_error",
    "code": "api_key_missing",
    "message": "Send your API key as `Authorization: Bearer <key>`.",
    "param": null,
    "request_id": "req_frd2UlzYqbxvNBzh0KlVjXtT"
  }
}

{
  "error": {
    "type": "permission_error",
    "code": "live_mode_unavailable",
    "message": "Live registrations are paused right now. Use a test key (fc_test_…) meanwhile.",
    "param": null,
    "request_id": "req_NgRhpG4Cex8pMaLHrlFLrNbP"
  }
}

{
  "error": {
    "type": "not_found_error",
    "code": "resource_missing",
    "message": "No such registration: reg_0000000000000000000000.",
    "param": "id",
    "request_id": "req_q0eCI4lKSfk7uWxnMju7SxAE"
  }
}

{
  "error": {
    "type": "invalid_request_error",
    "code": "<string>",
    "message": "<string>",
    "param": "<string>",
    "request_id": "<string>",
    "details": {}
  }
}

{
  "error": {
    "type": "invalid_request_error",
    "code": "<string>",
    "message": "<string>",
    "param": "<string>",
    "request_id": "<string>",
    "details": {}
  }
}